JP3563662B2 - Concrete block - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a large-sized concrete block such as a retaining wall block, a drain groove block, a fence ditch block, and a box culvert used for forming a retaining wall, a drain ditch, a drain tunnel, and the like.
[0002]
Problems to be solved by the prior art and the invention
When constructing retaining walls, drains, drainage tunnels, etc. by arranging large concrete blocks one after another, transport the concrete blocks to the site using trucks or other transport vehicles, lift them up using truck cranes, etc., and use the bases (base crushed stone, foundation concrete, etc.) as they are. ) Lowering it and arranging it sequentially at a predetermined position.
[0003]
At this time, the adjacent concrete block is temporarily held in a correct position in a floating state with respect to the base once, and then cement milk is injected into a floating gap between the bottom plate and the base through an injection hole provided in the bottom plate of the concrete block. Injecting and filling a hardener such as, but fixing the hardener, but in order to inject the hardener, it is necessary to seam around the bottom plate, for example, to prevent the hardener from leaking around the bottom plate .
[0004]
However, since it is necessary to perform this seaming for preventing leakage at least on all of the front and rear edges of the bottom plate of a plurality of concrete blocks to be installed side by side, it is quite easy because the concrete blocks are very large. Work was not a simple task, but the work efficiency was greatly reduced.
[0005]
In view of the above situation, the present invention requires only a minimum necessary seaming operation by providing a ridge that functions as a leakage wall of a hardening agent at a peripheral edge of a bottom plate of a concrete block. In other words, the present invention provides an epoch-making concrete block in which construction efficiency is remarkably improved.
[0006]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0007]
In the bottom plate 1 of the concrete block A, an injection hole 5 for injecting and filling a hardening agent 4 such as cement milk or mortar milk into a gap 3 between the bottom plate 1 and the foundation concrete 2 is provided. 1 is provided with a ridge 6 for placing the bottom plate 1 on the foundation concrete 2 in a floating state, and a hardening agent 4 is injected from the injection hole 5 into the gap 3 between the bottom plate 1 and the foundation concrete 2. When the ridges 6 are filled, the ridges 6 are formed on the periphery of the bottom plate 1 of the concrete block A so that the ridges 6 can function as a leakage wall for preventing the hardener 4 from leaking from the periphery of the bottom plate 1. A concave portion 7 having a degree of protrusion smaller than the top edge of the convex ridge portion 6 is provided in the middle of the convex ridge portion 6, and the curing agent 4 injected into the gap 3 from the concave portion 7 is visually recognized. So that you can configure this recess Is according to the concrete block, characterized in that the set configured to position the lifting bearings 8A of the jack device 8 for lifting adjust the concrete block A.
[0008]
The concrete block according to claim 1, wherein the ridges (6) are provided vertically on at least front and rear peripheral portions of the bottom plate (1) of the concrete block (A) to be installed side by side.
[0009]
The concrete block according to any one of claims 1 and 2, wherein the concrete block A provided with the protruding portions 6 on the bottom plate 1 is integrally formed of concrete. .
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.
[0011]
When the concrete block A is placed on the basic concrete 2, the convex strip 6 is suspended from the peripheral edge of the bottom plate 1 of the concrete block A. It will be placed in a floating state from 2.
[0012]
Subsequently, when the hardening agent 4 such as cement milk or mortar milk is injected and filled into the gap 3 between the bottom plate 1 and the foundation concrete 2 from the injection hole 5, the ridge 6 on the peripheral edge of the bottom plate 1 is hardened. The hardening agent 4 does not leak from the periphery of the bottom plate 1 because it functions as a leakage wall that prevents the leakage of the hardener.
[0013]
Therefore, only by placing the concrete block A on the base concrete 2, a gap 3 for injecting the hardener 4 is formed between the bottom plate 1 and the base concrete 2, and the concrete placed on the base concrete 2 When it is not necessary to correct the posture of the block A, since the seaming is not required when the hardening agent 4 is injected into the gap 3, the construction efficiency is remarkably improved as compared with the case of using the conventional concrete block. It will be a revolutionary concrete block that is extremely practical.
[0014]
When the concrete block A is not placed in the correct installation posture when the concrete block A is placed on the foundation concrete 2, the concrete block A is corrected to the correct installation state (posture). The concrete block A is maintained in a correct installation state by interposing a spacer or the like in a gap formed at an appropriate position between the concrete block 6 and the foundation concrete 2, but a part of the ridge 6 rises from the foundation concrete 2 due to the spacer interposition. Since a gap is formed, the lower portion of the ridge 6 having the gap is covered with a hardening agent 4 and filled into the gap 3.
[0015]
Therefore, in this case, the same seaming work as in the past is necessary, but still the work of seaming all the front and rear edges of the bottom plates of the side-by-side concrete blocks as in the past is unnecessary, and a gap is generated. Since only the minimum necessary seaming is required for only the part, the construction efficiency is remarkably improved.
[0016]
Also, a recess 7 having a degree of protrusion smaller than the top edge of the ridge 6 is provided in the middle of the ridge 6, and the curing agent 4 injected into the gap 3 from the recess 7 is visually recognized. since configured as possible, curing agent 4 throughout the gap 3 in the entire region from the recess 7 is visually recognized that it is injected filled, more so that can be fixed to firmly concrete blocks a to the concrete foundation 2 The configuration is excellent in practicality. When injecting the hardening agent 4 into the gap 3, the hardening agent 4 is injected while lining the concave portion 7.
[0017]
Further, by using the recess 7, because the set up to position the lifting bearings 8A of the jack device 8 for lifting adjust the concrete block A, a readily concrete blocks A using the jack device 8 Since the posture can be adjusted to the correct posture, the construction efficiency is further improved.
[0018]
【Example】
A specific embodiment of the present invention will be described with reference to the drawings.
[0019]
The drawings show five preferred embodiments of the present invention. FIGS. 1 to 5 show the first embodiment, FIG. 6 shows the second embodiment, and FIGS. 7 to 11 show the third embodiment. 12 to 15 show a fourth embodiment, and FIGS. 16 to 19 show a fifth embodiment.
[0020]
Describing the first embodiment, the concrete block A of the present embodiment shows a case where a retaining wall block A1 having a retaining wall 9 erected on the front edge of the bottom plate 1 is employed. Reference numeral 13 in the figure is a reinforcing plate.
[0021]
The bottom plate 1 of the concrete block A is provided with an injection hole 5 for injecting and filling a hardening agent 4 such as cement milk or mortar milk into a gap 3 between the bottom plate 1 and the foundation concrete 2.
[0022]
In this embodiment, a ridge portion 6 for suspending the bottom plate 1 from the foundation concrete 2 is placed on the bottom plate 1 provided with the injection hole 5, and the ridge 6 is provided between the bottom plate 1 and the foundation concrete 2. When the hardening agent 4 is injected and filled into the gap 3 from the injection hole 5, the convex ridges 6 function as leakage walls for preventing the hardening agent 4 from leaking from the periphery of the bottom plate 1. 6 is provided on the periphery of the bottom plate 1 of the concrete block A.
[0023]
Specifically, the ridges 6 are vertically provided at the front and rear edges of the peripheral edge of the bottom plate 1 of the concrete block A to be installed side by side.
[0024]
That is, even if the concrete blocks A are arranged side by side, the gap 3 between the bottom plate 1 and the foundation concrete 2 is in a communicating state, and even if the hardener 4 leaks outward from the left and right edges of the bottom plate 1, the adjacent concrete blocks A Since it flows into the gap 3 below A, the ridges 6 are unnecessary at the left and right edges of the bottom plate 1 except for the concrete blocks A which are substantially arranged at the left and right ends. 6 is provided only at the front and rear edges of the bottom plate 1 as in the present embodiment, so that a sufficient leakage preventing effect can be exhibited.
[0025]
In addition, only the concrete blocks A arranged at the left and right end portions as described above require a seam for preventing the hardener 4 from leaking to the right or left peripheral portion of the bottom plate 1. A concrete block A having a configuration in which the peripheral edges on the right or left side of the bottom plate 1 of the concrete blocks A to be lined up or the convex ridges 6 are also provided on the right or left peripheral edge of the bottom plate 1 is used. .
[0026]
The degree of protrusion of the ridge 6 is determined by the gap between the bottom plate 1 and the foundation concrete 2 by the ridge 6 when the concrete block A is placed on the foundation concrete 2. 3 is set so that the gap 3 is formed so that the hardening agent 4 can be injected and filled in a sufficient amount to fix the concrete block A to the foundation concrete 2. are doing.
[0027]
Further, in the present embodiment, a recess 7 having a degree of protrusion smaller than the top edge of the ridge 6 is provided in the middle of the ridge 6, and the curing agent injected into the gap 3 from the recess 7 is provided. 4 is visible.
[0028]
More specifically, as shown in FIG. 2, the convex portions 6 provided on the front edge portion of the bottom plate 1 are provided with the concave portions 7 at two right and left places at predetermined intervals, and provided on the rear edge portion of the bottom plate 1. The protruding ridge portion 6 has a configuration in which a concave portion 7 is formed only at one intermediate position.
[0029]
The recess 7 has a recess width set so that a lifting support 8A (support claw) of a jack device 8 for adjusting the elevation of the concrete block A can be arranged.
[0030]
In this embodiment, the concrete block A having the ridges 6 and the recesses 7 is integrally formed of concrete.
[0031]
The second embodiment will be described. In the present embodiment, the concave portion 7 is not provided in the convex portion 6 in the first embodiment, and the convex portion is provided on the entire edge of the front and rear edges of the peripheral portion of the bottom plate 1 of the concrete block A. 6 is installed vertically. This configuration can be applied to third, fourth, and fifth embodiments to be described later. In this embodiment, a bottom plate 1 slightly different in shape from the bottom plate 1 of the first embodiment is shown.
[0032]
The third embodiment will be described. In this embodiment, as a concrete block A, a side groove 12 is integrally formed on the front side of the bottom plate 1 and a retaining wall 9 is erected on the rear side of the side groove 12. This shows a case where A2 is adopted, and the other configuration is the same as that of the first embodiment.
[0033]
Describing the fourth embodiment, this embodiment shows a case where a box culvert A3 is employed as the concrete block A. In other respects, the configuration is substantially the same as that of the first embodiment. However, in the present embodiment, unlike the first embodiment, as shown in FIG. 3 also shows a case where the concave portions 7 are provided at two positions on the left and right at predetermined intervals.
[0034]
Explaining the fifth embodiment, this embodiment shows a case where a U-shaped groove block A4 having a U-shaped cross section is used as the concrete block A, and the other configuration is the same as that of the fourth embodiment. is there.
[0035]
Incidentally, the arrangement structure of the concave portion 7 as in the fourth and fifth embodiments may be applied to the first and third embodiments, and the arrangement of the first and third embodiments may be applied to the fourth and fifth embodiments. Such an arrangement structure of the concave portions 7 may be applied.
[0036]
Next, an installation method common to the above five examples will be described.
[0037]
The concrete block A is lifted by a crane or the like, and the concrete block A is placed on the foundation concrete 2 as it is. Then, since the protruding ridges 6 are suspended from the peripheral edge of the bottom plate 1, the bottom plate 1 is placed above the foundation concrete 2 via the protruding ridges 6 in a floating state.
[0038]
Subsequently, when the hardening agent 4 such as cement milk or mortar milk is injected and filled into the gap 3 between the bottom plate 1 and the foundation concrete 2 from the injection hole 5, the ridge 6 on the peripheral edge of the bottom plate 1 is hardened. The hardening agent 4 does not leak from the periphery of the bottom plate 1 because it functions as a leakage wall that prevents leakage of the hardener.
[0039]
Then, the concrete block A is fixed on the foundation concrete 2 by the hardening of the hardener 4.
[0040]
Therefore, the gap 3 for injecting the hardener 4 is formed simply by placing the concrete block A on the foundation concrete 2, and the posture of the concrete block A placed on the foundation concrete 2 is corrected. In the case where it is not necessary to apply the hardening agent 4 to the gap 3, it is not necessary to apply the sealing, so that the construction efficiency is remarkably improved as compared with the case where the construction is performed using the conventional concrete block. .
[0041]
At this time, in the first, third, fourth, and fifth embodiments, it is possible to visually check the state of filling and filling the gap 3 from the recess 7. That is, since it is possible to visually check whether or not the hardener 4 has been injected and filled throughout the gap 3 from the concave portion 7, the hardener 4 is provided in the gap 3 so that the concrete block A is firmly fixed to the foundation concrete 2. Can be injected and filled. When the hardening agent 4 is injected into the gap 3, the hardening agent 4 is injected while the recess 7 is laid.
[0042]
The determination of the state of injection from the concave portion 7 indicates that, for example, the hardening agent 4 is filled almost entirely in the gap 3 by injecting and filling until the hardening agent 4 is likely to leak from the concave portion 7. It can be seen from the fact that the hardening agent 4 seeps out of the recessed recess 7 (it is impossible to prevent the hardening agent 4 from leaking 100% even if the seaming is performed), and the hardening agent 4 overflows from the injection hole 5. You can tell from the coming. In addition, as a method of visually confirming the state of injection from the concave portion 7, for example, it is possible to visually remove the sealing agent while injecting the curing agent 4 and sometimes visually confirm the state, or use another method.
[0043]
When the concrete block A is not placed in the correct installation posture when the concrete block A is placed on the foundation concrete 2, the concrete block A is tilted by an appropriate method and adjusted to the correct posture. A correct installation state is temporarily maintained by interposing a spacer or the like in a gap formed at an appropriate position between the ridge portion 6 and the foundation concrete 2, but a part of the ridge portion 6 rises from the foundation concrete 2 by the spacer intervention. Since a gap is formed, the lower portion of the ridge 6 having the gap is covered with a hardening agent 4 and filled into the gap 3.
[0044]
Therefore, in this case, the same seaming work as in the past is necessary, but still the work of seaming all the front and rear edges of the bottom plates of the side-by-side concrete blocks as in the past is unnecessary, and a gap is generated. Since only the minimum necessary seaming is required for only the part, the construction efficiency is remarkably improved.
[0045]
In the first, third, fourth, and fifth embodiments, when adjusting the installation posture, the concave block 7 is used to adjust the concrete block A as shown in FIG. The lifting device 8A of the jack device 8 is arranged, and the concrete block A can be adjusted to a correct posture by using the jack device 8.
[0046]
At this time, the lifting bearing 8A of the jack device 8 can be arranged in the concave portion 7 with the protruding ridge portion 6 placed on the foundation concrete 2, so that, for example, only the jack device 8 arranged on the portion of the concrete block A to be inclined is desired. , The posture can be stably adjusted and corrected, and this posture adjustment work can be easily performed.
[0047]
Further, since the gap 3 is secured with respect to the foundation concrete 2 by the ridge 6 and the lifting support 8A of the jack device 8 can be arranged in the recess 7, the lifting support 8A (support claw) of the jack device 8 can be provided. The width of the gap 3 does not change due to the thickness of the concrete block, and the position is corrected by slightly adjusting the height with the jack device 8 from this state. The change in the width of the gap 3 due to the correction is small, and the appropriate and minimum amount of the hardener 4 can be injected to fix the concrete block A.
[0048]
When the position of the concrete block A is corrected by the jack device 8, the correct state is maintained by a spacer or the like, the jack device 8 is removed from the concave portion 7, and then the hardener 4 is injected into the gap 3.
[0049]
In the figure, reference numeral 10 denotes a rubble stone layer constituting the foundation concrete 2, and reference numeral 11 denotes a gravel layer also constituting the foundation concrete 2.
[0050]
【The invention's effect】
Since the present invention is configured as described above, the ridge is vertically provided on the peripheral portion of the bottom plate, so that the hardener is injected between the bottom plate and the base concrete simply by placing the concrete block on the base concrete. In addition, when it is not necessary to correct the posture of the concrete block placed on the foundation concrete, the ridges serve as leak-blocking walls when the hardening agent is injected into this gap, so that there is no need for seaming Therefore, the construction efficiency will be significantly improved as compared with the case of using the conventional concrete block, and simply placing the concrete block on the foundation concrete will not result in the correct installation posture, Even if the correct installation state is obtained by interposing a spacer or the like in the appropriate place between the ridge and the foundation concrete, one Since only the lower part of the protruding ridge that has risen and has a gap is required to be seamed, it is not necessary to seam all the front and rear edges of the bottom plate of the side-by-side concrete block as in the past, and a gap is created. Since it is only necessary to apply the minimum necessary seaming to only the part where it is located, it becomes an extremely practical and revolutionary concrete block which significantly improves construction efficiency.
[0051]
In addition, even though it is a configuration having a ridge, since the state of injection and filling from the recess into the gap can be visually recognized, it is possible to firmly fix the concrete block to the foundation concrete by filling the entire space with a hardening agent, In addition, since it is only necessary to apply a seam to the portion where the concave portion is present at the time of construction, a concrete block having a more practical construction that significantly improves the construction efficiency as compared with the related art is obtained.
[0052]
In addition, since the concrete block can be easily adjusted to the correct posture by using the jack device by using the concave portion, the concrete block has an excellent configuration that can further improve the construction efficiency.
[0053]
Further, in the invention according to claim 2, since the protruding portion is provided at least at the front and rear peripheral portions of the bottom plate, for example, as compared with a case where the protruding portion is provided at the entire peripheral portion of the bottom plate. The labor required for manufacturing is reduced, and the gap between the bottom plate and the foundation concrete in the side-by-side concrete blocks is in communication, and the injected hardener flows below the bottom plate of the next concrete block Therefore, a concrete block having a configuration extremely excellent in practical use, in which a sufficient leak-proof effect is exerted by the ridges at the front and rear peripheral portions of the bottom plate.
[0054]
Further, in the invention according to claim 3, the concrete block provided with the ridge portion can be easily integrally formed by concrete molding, so that it is possible to configure it more excellently in mass productivity and inexpensively. Concrete block.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment.
FIG. 2 is an explanatory bottom view showing the first embodiment.
FIG. 3 is an explanatory side view showing a completed installation (construction) state of the first embodiment.
FIG. 4 is an explanatory front view showing an installation (construction) completion state of the first embodiment.
FIG. 5 is an explanatory rear view showing the installation (construction) completion state of the first embodiment.
FIG. 6 is an explanatory bottom view showing the second embodiment.
FIG. 7 is a perspective view showing a third embodiment.
FIG. 8 is an explanatory bottom view showing a third embodiment.
FIG. 9 is an explanatory side view showing an installation (construction) completion state of the third embodiment.
FIG. 10 is an explanatory front view showing an installation (construction) completion state of the third embodiment.
FIG. 11 is an explanatory rear view showing a completed state of installation (construction) of the third embodiment.
FIG. 12 is a perspective view showing a fourth embodiment.
FIG. 13 is an explanatory bottom view showing the fourth embodiment.
FIG. 14 is an explanatory side view showing a completed installation (construction) state of the fourth embodiment.
FIG. 15 is an explanatory front view showing a completed installation (construction) state of the fourth embodiment.
FIG. 16 is a perspective view showing a fifth embodiment.
FIG. 17 is an explanatory bottom view showing the fifth embodiment.
FIG. 18 is an explanatory side view showing an installation (construction) completion state of the fifth embodiment.
FIG. 19 is an explanatory front view showing the installation (construction) completion state of the fifth embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Foundation concrete 3 Gap 4 Hardener 5 Injection hole 6 Convex ridge 7 Recess 8 Jack device 8A Elevating bearing A Concrete block

Claims (3)

In the bottom plate of the concrete block, an injection hole for injecting and filling a hardening agent such as cement milk or mortar milk is provided in the gap between the bottom plate and the foundation concrete, and the bottom plate floats on the bottom plate provided with the injection hole from the foundation concrete. When a ridge to be placed in a state is vertically provided and a hardening agent is injected and filled into the gap between the bottom plate and the foundation concrete from the injection hole, the stiffener leaks from the periphery of the bottom plate. This ridge is provided on the periphery of the bottom plate of the concrete block so as to function as a leakage wall for preventing the concrete block, and the protrusion having a degree of protrusion higher than the top edge of the ridge in the middle of the ridge. A small concave portion is provided so that the hardener injected into the gap from the concave portion can be visually recognized. The concave portion is provided with a jack device for adjusting the elevation of the concrete block. Concrete blocks, characterized in that set configurations to be placed a lifting bearing of. The concrete block according to claim 1, wherein the protruding ridges are vertically provided at least on front and rear peripheral portions of a bottom plate of the concrete block to be installed side by side. The concrete block according to any one of claims 1 and 2, wherein the concrete block provided with the ridges on the bottom plate is integrally formed of concrete.

Images